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176
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1 using System;
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2
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3 namespace Implab.Formats {
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4 public class StringScanner: TextScanner {
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5 const int CHUNK_SIZE = 1024;
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6
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7 readonly string m_text;
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8 int m_pos;
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9
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10 public StringScanner(string text) : base(text.Length, text.Length < CHUNK_SIZE ? text.Length : CHUNK_SIZE) {
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11 m_text = text;
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12 Feed();
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13 }
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14
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15 protected override int Read(char[] buffer, int offset, int size) {
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16 var actual = size + m_pos > m_text.Length ? m_text.Length - m_pos : size;
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17
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18 m_text.CopyTo(m_pos,buffer,offset, actual);
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19
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20 m_pos += actual;
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21
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22 return actual;
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23 }
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24 }
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25 }
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26
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